Phono Preamp Reviews

Trickle-down technology is a grand thing. It's comparatively easy to build an exceptional audio component when there are no constraints on technology, cost, user-friendliness, or lack thereof, but top designers are now packing more and more of the excellence of damn-the-torpedoes components into more affordable and accessible packages. Which brings us to the Aesthetix Rhea, a tubed phono preamplifier of exceptionally distinguished lineage.

Install a new component in your system and there's usually a period of adjustment as you get used to the difference in sound—especially if the new product costs much less than your reference. Channel D's new Lino C 2.0 balanced phono preamplifier costs $2499, yet my ears instantly accepted its combination of drop-dead, noise-free backgrounds and lack of obvious colorations or sonic personality. I didn't hear it—I heard only my Ortofon A95 cartridge, with which I'm well familiar, as amplified by far more costly phono preamps.

Haniwa's Dr. Tetsuo Kubo is an interesting fellow. If you go to shows, domestic or overseas, you've possibly encountered him in his room a space known for being strewn, shrine-like, with LPs that once belonged to The Absolute Sound's founder, the late Harry Pearson: Dr. Kubo was a fan.

AVM Audio, which has been in business since 1986 (footnote 1), chose last year to enter the turntable market with two models that reflect the company's brushed-aluminum/blue LED visual aesthetics.

It doesn't take a forensic turntable scientist to figure out who manufactures both of those turntable models. Clearly, Pro-Ject does (footnote 2)—although some audiophiles might recognize only a few key parts. Other elements, especially the two different tonearm models, may appear unique to AVM, having been built to their specs.

The two biggest sonic jolts I've experienced involving phono preamps were from two very different ones: the Petr Mares's Connoisseur 2.0 and Boulder's 2008, which was reviewed in the July 2002 Stereophile. The first was hand-built, single-ended, housed in a wooden case, limited to 100 units, and, when I got to hear it in the mid-1990s, cost around $6000, or about $10,000 in today's dollars. The other was a feature-laden, double-chassis monument to flexibility and surface-mount high technology. It featured beautifully finished, flush-mounted mirrored buttons your fingers just wanted to press.

The German company AQVOX Audio Devices has produced an innovative moving-coil/moving-magnet solid-state phono preamplifier, the Phono 2Ci, that's as intriguing for its technology and performance as it is for its relatively low price: $1400. The zero-feedback, op-amp–free circuit uses a compact switch-mode power supply that's built into the chassis and features conventional voltage gain for moving-magnet cartridges via its RCA jacks, and current gain for moving-coil cartridges through the balanced XLR inputs. Rear-panel switches select between RCA or XLR inputs and offer a convenient ground lift. Either the single-ended or the balanced outputs can be used with either input. Unfortunately, the tight spacing of the RCA input and output jacks, which are mounted on the circuit board, will somewhat limit your choice of cables: Pairs of thick-barreled plugs will have difficulty fitting.